Practice problem
(2+6)+5=(2+6)+5=(2+6)+5=
2+(6+5)2+(6+5)2+(6+5)
(2+6)+5(2+6)+5(2+6)+5
(2+5)+6(2+5)+6(2+5)+6
2+6+52+6+52+6+5
131313
Type a concept, like “slope” or “photosynthesis”.
